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Mend Vaillant Boiler Heating Error Code

Our vaillant boiler is showing F.22?

The boiler is swiched on but there are not heating or hot water and the bar is on 0 and it is showing F.22, how can I fix this?

Adele
May 2009

Vaillant Heating, Home Heating Systems Boiler Heating Error Code

you need to locate the filling loop usually a silver metal braded hose open the taps either end of it and the pressuere will increase stop it at one bar make sure you closes both taps reset boiler and search for your leak?

xsyx
May 2009

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Vaillant Boiler Error F.22 - Fix & Troubleshooting